I seem to have a similar problem. Just downloaded and installed CCleaner on my Dell desktop running W98SE. Running 'Analyse' on the default selection results in a totally blank list. If I deselect all but the 'System' subset and run 'Analyse', I then get a list, but it shows only 'recycle bin' and about 30 log-files as selected for deletion. No temp files or others are shown even though I know there are around 500 .TMP on the system.
If I deselect all but the 'Windows Explorer' subset and run 'Analyse' I get this message
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ANALYSIS COMPLETE - (0.048secs)
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0 bytes to be removed (approximate size)
If I deselect all but the 'Internet Explorer' subset and run 'Analyse' I get a totally blank screen.
Running 'Scan for Issues' seems to work correctly. I have downloaded and re-installed the VB runtimes as suggested previously, but this didn't help.
Harleyquin