I have not been able to correct this problem. One of the things I hate most about IE. Works fine in FF, but then again this is the only thing mozilla focuses on. Wish I could help. Never got a satisfactory answer.
If you have better luck, let me know. In our latest development we had to go with something more harmoniums and adaptable to build out profiles. Maybe not as many preset tools, but with the ability to add them, without conflicts throughout the site was more important.
Finally I find a solution (or at leat it works for me):
just edit the cb.profilebook.php file (//yoursite/components/com_comprofiler/plugin/user/plug_cbprofilebook7) at the line 1096 and remove the following part:
style="width: 95%
That's it.
Once edited it works perfectly.
Please just let me know if it works or not because I'm a newbie and I'd like to know if I understood a little bit more of Joomla and CB or not.