Iam using Excel 2007 with XP and have been doing so ever since I got my new Dell Latitude D630 Laptop a few months ago. Everything was working fine until a few days ago when my right mouse button ceased to work in Excel. It works fine in everything else (Word, Outlook, Powerpoint etc) just Excel. It doesn't matter if I use the touch pad, a mouse (I have tried several) or hot key button nothing seems to work. I even tried re-installing MS Office but still no right click in Excel. I am getting very frustrated - can anyone help me please?