I have started having problems with using any "emailto:" links in internet explorer 6. Clicking the link results in loads of new windows opening until the PC grinds to a halt. The only course of action then is to reboot it.
It has been suggested that this problem may be related to installing MS Office XP which makes sense as I have done that recently. Unfortunately the person who gave me that info could not suggest a fix. I am using Windows 98.