I have a curious problem with ZWC and IE8: Some functions (particularly scrolling folder lists) only work with a fresh load of the client!
(a) Load ZWC, scroll down list in folder - OK
(b) Load ZWC, read new mail, go off to make coffee, scroll down list in folder - 'Script error', no mail added to bottom of list when bottom reached. Refresh/F5 - OK again !!!
It's as if IE is dropping/forgetting the add-to-bottom-of-list-when-scrolling function if it hasn't been used recently. FF doesn't do this. It also happens with other functions that, I assume, are loaded and cached when ZWC loads and called as necessary.
Can anyone shed any light on this?