windows won't maximize (98 SE)

i recently had to reformat my hard drive and reinstall 98 SE and all drivers/sw. things worked for a few days..however, now i cannot maximize my windows (all apps. - i.e. word, ie 5.5, etc.) . the icon in the upper right corner indicates that the window is maximised and the settings under 'properties' also indicates that the app. is opening w/ a maximized window....but i have approx. 2 inches between the edge of my window and the task bar. i'm unable to click and drag the window to enlarge it.

 

Sounds to me like a video driver or setting.

 

Have you tried the controls on the front of the monitor? If that doesnt work then try reinstalling the video drivers like Dreamboat suggested.