I bought LimeWire pro 2 nights ago. I downloaded it and it downloaded to my desktop as a document. However that is not my only problem. When I try to open it-it says something like "Quicktime cannot open because this is not a file quicktime understands" and then gives me an error code (-2048). Somebody please help me. I have tried to change the extenion name and the default application but nothing helps.

Thanks!
Mary

Does the 'document' end in .dmg ?

If so, open with Disk Utility, an the Applications/Utilities folder.