Problem with Caliber Reading My PDF Files...

Hey all,

I have been fooling around with PDF files over the last week and nothing much has been going on. Lately I have been going through my PDF books and see how the title pages, covers and such were all screwed up and I wanted to fix them. I knew it couldn't be that hard. I done a few searches and found a PDF editing program. I installed it, played around with it and it was doing everything I wanted it to, great program so far.

I used this program to edit a pdf before loading it into Calibre. I wanted to see what it would look like once it was loaded so I loaded into Calibre. So far so good. To see if all the changes that I made took hold I clicked the vIEW button to see the Pdf. Well instead of the standard PDF reading program to open up and start letting me read it, the program that I just d-loaded and used to change the pdf was opening for me to use it instead of the default PDF reader that was present with Calibre. I want that reader BACK.

Can someone tell me how to go back and get my default PDF reader that I used with Calibre up until yesterday after I installed the PDF editor program?

HELP PLEASE....

Thanks