Running CCleaner's registry cleaner results in 'loss' of Acronis shortcut icons (Disk Director, True Image and On-line Backup - current and previous versions (11, 2011, 10, 2010) under windows xp sp3 fully patched and windows 7 fully patched. Note, link to .exe remains active; either .ico deleted or link lost? I note too that upadates to windows 7 can have a similar effect (may be one for MS/Acronis) - your comments please.
Please read my Advice in my signature regarding registry cleaning
CCleaner also removes the Adobe Reader icon as well...