Stage jumping from center and not able to select text box, objects, etc.

Hi All --

Brand new Captivate 2019 user here.  Just uploaded a 30 day trial version from Adobe.  This is such a basic problem, but I cannot find the solution... When in a brand new project, my slide is not centered on the stage - viewing at 100%, I must use my vert & horz scroll bars to locate the slide.  When I have located it, and try to double-click on the title text, the slide jumps again and I must locate it again.  If trying to marquee the title text on my slide, my cursor seems to be off to the left and down -- it's not aligned with the visual cursor on the screen.  I've checked my cursor location in an Illustrator document - all okay, and cursor alignment on browsers is fine as well.  I've dumped the program and reinstalled and have restarted my laptop.  Any suggestions?  This is making me crazy!  Thanks in advance. --kcH