The VB within Excel is Visual Basic for Application. VBA is a very different product from VB.NET and there are some other locations where youy will probably get a quicker and better response to your VBA questions.

You may find more assistance in following which specifically deals with VBA development.

http://forums.microsoft.com/MSDN/ShowForum.aspx ForumID=74&SiteID=1

Or if you are using VBA from within on of the office applications

Office Automation: office.developer.automation newsgroup

http://msdn.microsoft.com/newsgroups/default.aspx dg=microsoft.public.office.developer.automation&lang=en&cr=US

Or the Office Newgroups

http://www.microsoft.com/office/community/en-us/default.mspx d=1

Or if you just trying to use Excel - you may want to check the installation to ensure that it was correctly installed