Hi bal,
There is a known issue with the Check Reconciliation report screen and converting to version 8.0A in conjunction with the 'Remember Report Settings' option in the company profile. If you had this option enabled in version 6.8B, then when you upgrade to 8.0A, you will see that for the Check Rec report, the 4th sort sequence has a blank field, yet there is a date field to the right - this prevents the report from printing.
The easy solution is to go into the Company Profile and disable the Remember Report Settings option (and close the Profile), then go back in and turn it on again (if you want it). Turning it off resets all the report options to their default, including the Check Rec report. You should now be able to print the report as you used to.