window resizes its self without help.

question !
My windows size has resized its self to about half screen or less, by its
self, i looked in the registry to try to find the windows size but not sure
where or what the size settings should be. [ Im running win 98se- 600x800 res, ati 64 meg radeon video card, 768 megs ram. if that helps figure the problem ].
Im not the only person that has had this problem, others have asked me what
they should do but im at a loss.
Im sure there are a lot of readers out there
that have this problem also and it would be great if this could be addressed.
concern in one of your tips someday.
An avid reader of Techtips.
SWolf.