"Not Responding" becoming a big problem with my Corel X6

Hello,

This is my first question in the community. At my office I use CorelDraw X6 64-bit on Windows 7 PC. Starting yesterday it has become quite slow, I will list the problems here:

1) "Not Responding" happening every time I ctrl+c an object.

2) "Not Responding" happens sometimes when I delete an object.

3) "Not Responding" when I close a file, with or without saving.

4) "NR" when I save a file or publish it to PDF.

5) "NR" at any given random time, no rhyme or reason.

6) Suddenly cannot select my default printer anymore. We have 3 to choose from here and the main one, the J75, cannot be selected form the drop down menu in the print screen. It defaults to "Device Independent PostScript File". Selecting other printers is an option, however it is extremely slow and also results with the "Not Responding".

7) Seems to be affecting other programs like Word and Adobe in the print screens; i.e. very slow, not responding. I can select the J75 in other programs, however.

I have cleared my temp files, run all my updates, run a repair on CorelDraw and run my antivirus resulting in next to no improvement. Can't seem to find anything online about my specific problems. Any help? Thank you!