Squier Classic Vibe 50 Strat Won't Stay In Tune.

I have been reading advice from this forum for some time now but have never chimed in. I purchased a Squire Classic Vibe 50's Strat about 4 weeks ago and love this guitar. I love the looks, the feel of the neck everything about it but the darn thing won't stay in tune. I tried a few things and have even put a solid block of maple between the tremelo and the body because I never use it anyway. I guess my question is could it be the tuners that are the culprit? I have read a few forums about how some even think these tuners are really good but i thinking different. I don't want to buy some Gotoh tuners if that would be a lateral move. Can you guys offer some suggestions? Do you think it is the tuners? What replacement tuners would fit without much modification? I love the guitar but I don't love it not being in tune. Thanks, Rich.

do the strings slip on the posts? the cv has the old school safety post type tuners, correct? is the end of the string all the way into the hole in the center of th post before starting the windings?
another thing to check would be the intonation. if it's off, the guitar won't stay in tune at all.

What guage strings are you using? have you changed string guages from when you bought the guitar? if so a larger size might be the problem.
If the strings are binding up in the nut that will cause major tuning problems, do you hear a "ping" kind of sound when you tune it up?
If you aren't comfortable working on the nut have a qualified tech look at it.
If you have the trem blocked it has to be something fairly simple.

Thanks for the suggestions guys, I have put new strings on the guitar and yes I have made sure that the string is all the way down into the hole so I don't think that is the problem. I did put 10's on the guitar, Ernie Ball Regular Slinky strings but don't hear the binding sound you are talking about. I did set the intonation as close as I could get it which is pretty close. I have a MIM Telecaster which seems to never go out of tune but that has the Fender Ping tuners, I believe, and has no tremolo obviously. Are most people having good luck with the old school safety post tuners that come standard on this strat? Is there a lubricant I can put on the nut to see if that is the problem? Like I said I love this guitar but I would love it more if it would stay in tune.

You might try some chapstick in the nut slots - really!

Use a lead pencil on the nut slots.

Use a lead pencil on the nut slots.

+1, tuning problems are usually the string binding in the nut. I had to open up the slots a little on my CV Strat when I switched to 11's.

Okay guys thanks for the suggestions I will try to lubricate the joint if that doesn't work I will try to open up the slot a little. I am guessing you want to open the width of the slot more that the depth correct? Has anybody had any luck using an old string the size to be used in the slot and tried running it back and forth to open the slot or do you recommend a file the proper size for the string?

Use a lead pencil on the nut slots.

I use a freshly shapened pencil and run the tip thru each slot enough to leave some residue. Then I lightly blow off/out the excess. I've never really had any tuning issues with any of the guitars I've ever owned, so I count myself as being very lucky!

At some point, I'd like to own one of those 50's CV Strats. I've had the chance to play a few and they feel great and sound just like a Strat should, IMO. Good luck and let us know how it turns out.