All was going well until the recent update with WinStat stats package (Add-In for Excel). Now Excel freezes even when not using the WinStat Add-Ins for analysis and often Excel can only be closed using the Alt-Ctl-Dlt function - and then with some effort. Since the update, it has become unstable and frequently requires a new download. The consequence being, you can't use the initial/previous User Code. You have to write and request a new code every time you download. Frustrating when in the middle of data analysis. A good product going south.
