Is there anything wrong with how the SU workspace looks or any abnormal tool function?
Does your computer refuse to open SketchUp?
There may be a deficiency with the
Sometimes there are problems installing SketchUp, sometimes problems are SketchUp bugs, and sometimes problems with SketchUp are symptoms of another computer conflict.
Here is a Checklist of things to do when upgrading to the latest SketchUp release.
And a catch-all for interesting problems and Other Annoyances that come up from time to time with modeling and whatnot.