SEP 12.1 failing definition updates with "Decompression failed for package"
problem: Windows XP SP3, IE7, Italian, Symantec Endpoint Protection 12.1, fully patched, definitions stucked since 20th of December 2012.
Liveupdate fails at the same point with an error "Decompression failed for package" and the filename is always 1323894943jtun_sep12ennful26.m26
Tried to install (successfully) the updates manually with Intelligent Updater 20130129-032-v5i32.exe; still Liveupdate tries to install the faulty update file 1323894943jtun_sep12ennful26.m26 and fails.
I've seen another two posts on this forum with the same problem, both closed but both unresolved: https://www-secure.symantec.com/connect/forums/symantec-endpoint-protection-121-failed-update-virus-defs and https://www-secure.symantec.com/connect/forums/sep-client-wont-update-due-decompression-failure
Has anybody found a definitive solution?