No it won't.
With rare exceptions, magnets have no effect on electronics whatsoever. And even in those rare exceptions, the effect is transitory and goes away when the magnet is removed.
There is ONE possible "exception to the exception", though, and even this "danger" is passing into history. Old color CRTs had a metal screen behind the CRT phosphors. Kids were always having fun by dragging magnets across the TV and distorting the colors and the picture. I've HEARD of cases (but never actually seen it, so it may also be a myth) where if a strong enough magnet was used, it would permanently magnetize the screen to the point where even degaussing couldn't fix it.
PS:
Magnets don't bother hard drives, either. The dangers lurking in getting magnets too close to a hard drive is a myth.
PPS:
I just noticed this thread was started in jan 2010 and ran through august.
Then Kolby resurrected it in march of this year for a couple of days.
Then Wolfpaw re-ressurected it the other day.
It's "The Attack of the Zombie Threads!!!"