Constructor acting weird.

When I DL Constructor from the site, it tells me that it may not have installed correctly. I get two choices: Reinstall using recommended settings or agree that the program was installed correctly. I went ahead and went with the first option. When I used the program, the cursor is off by about an inch below the cross hair. It makes it difficult to resize on the grid. Also, I cant find any way to click on different shapes after I have made multiple ones. It would only let me hilight the most recent one made.

Im using Vista. Im not sure if this would be a reason, but its messing with my time to get my project done.

If anyone knows, Id appreciate your help.

Thanks!