Problem with apple IIe's monitor

[Ross Witherby <witherr@hotmail.com>]

Hi.
I just got an apple IIe, and i'm running applsoft basic. But when i
switch to graphics mode it goes all weird colours, but is perfect in b/w
mode. It also happens in any program where colour is used, and can be
unreadable at time(i have to switch the monitor to b/w). Has anybody
experienced this, and knows how to fix it. I'd really appreciate help.

Thanks a heap
Ross