YvonH.kap
We have been getting a lot of threads on Premiere Elements 9.0/9.0.1 and issue such as you have been experiencing. Many have been solved my the deletion of the settings file (Adobe Premiere Elements Prefs file) as you have noted. (By the way, when you did that and deletion of the Adobe Premiere Elements Prefs deletion did not resolve the problem, did you then delete the whole folder in which the Adobe Premiere Elements Prefs file exists?
1. When you did the uninstall/reinstall, did you include a ccleaner run through between the uninstall and the reinstall? Good idea to do that to remove any leftovers from incomplete uninstall reinstalls.
CCleaner - PC Optimization and Cleaning - Free Download
That should be done to include the regular cleaner and registry cleaner parts of ccleaner.
2. Do you have the 9.0.1 Update installed.
Adobe - Premiere Elements : For Windows : Premiere Elements 9.0.1 update
Do you have the latest version of QuickTime installed on your computer
3. Are you running your computer from a User Account with Administrative Privileges as well as Run As Administrator (from right click of program desktop icon and selection of Run As Administrator?
4. Is your video card/graphics card up to date according to the web site of the manufacturer of the card?
5. Does the problem exist with and without the antivirus program disabled?
6. Go to Computer/Manage/Services and Applications/Services and assure that FLEXnet Licensing Service is started.
7. The following is a version 12 remedy, let us see if this will work for 9.0/9.0.1
As described in the link below, rename the SLCache Folder and the SLStore Folder.
http://www.atr935.blogspot.com/2014/04/pe12-premiere-elements-12-editor-will.html
Lots of possibilities. Please let us know the outcome of your review of the suggested troubleshooting considerations.
Thank you.
ATR
Add On...Many thanks for starting your own new thread on your particular Premiere Elements 9.0/9.0.1 situation.