Welcome to Seven Forums johnmc. If reset doesn't work, try this:
Start> Type Run> Enter
Type regsvr32 urlmon.dll
Click OK
You should receive a message of success, click OK
If this doesn't fix the problem, repeat steps for each of the following followed by Enter
Type regsvr32 Shdocvw.dll
Type regsvr32 Msjava.dll
Type regsvr32 Actxprxy.dll
Type regsvr32 Oleaut32.dll
Type regsvr32 Mshtml.dll
Type regsvr32 Browseui.dll
Type regsvr32 Shell32.dll
You can also try the Captain's IE Restorator
SF IE Restorator - Troubleshooting General Issues with IE
Good luck. A Guy