Apps unable to install!

[diesel00]

I have downloaded a couple of apps from yuppos group on yahoo and sent them to my phone via email. I installed them into my phone and then deleted them. I then tried to reinstall them and now some of them give me an error message Unable to Install! while others I was able to install again. The ones that wont reinstall are:
FSCaller
Photographer V2
Image Spy
HipCam
Anybod have any idea why this would happen, any suggestions would be appreciated.

[Angel Of Death]

There might be old ini files on your c drive that are causing the problem, other than that i dunno. I have removed and re-installed image spy and camrec before without any problems.

[diesel00]

how would I find this out and how would I remove them?

[Angel Of Death]

Use a file manager and just look around your c drive. The root directory, data folder and apps folders are a good place to look.