Problems with IIe

[jeff@tiger.lsu.edu (Jeffrey Thomas Sheldon)]

I have one of the "new" Apple IIe's (with the enhanced keyboard and 
frame) that fills the screen with gibberish characters once it is turned 
on.  I've seen this problem with Apple II's quite a bit and was wondering 
what I should do to see if I can fix it. 

For instance, I suppose I should remove the chips and seat them back in 
or perhaps push down on them all (which I haven't tried yet), but are 
there any other suggestions I can get as well?

Also, since this "just seems to happen", then most likely it isn't faulty 
chips is it?  I mean, I couldn't imagine a bunch of Apple II's just 
blinking out like this over time just because a chip or two couldn't take 
the pressure any more :)   I guess I'm just hoping it is something easily 
repairable in one evening.

-Jeff