Strange things during upgrades

[Antonio M]

I installed F12 on a desktop of a friend of mine.
She is experiencing freezing in particular during upgrades

Today during upgrades she got:

[root at Lella Lella]# yum-complete-transaction
Plugin caricati:presto, refresh-packagekit
No unfinished transactions left.
[root at Lella Lella]# yum clean all
Plugin caricati:presto, refresh-packagekit
Pulizia completa
0 delta-package files removed, by presto
[root at Lella Lella]# yum update
Plugin caricati:presto, refresh-packagekit
adobe-linux-i386                                         |  951 B     00:00
adobe-linux-i386/primary                                 |  11 kB     00:00
adobe-linux-i386                                                          17/17
fedora/metalink                                          |  29 kB     00:00
fedora                                                   | 4.2 kB     00:00
fedora/primary_db                                        | 9.7 MB     00:41


[Errno 2] No such file or directory:
'/var/cache/yum/i386/12/fedora/01a9150327554e6d65132266f7b065a5d107b4efb7afa78012fa3ffcc6f517e9-primary.sqlite.bz2'


What does it mean???
In the mean time, after rebooting she got strange colors on the
desktop and all icon were missing...what shall I suggest to her in
order to recover??

Tnx

-- 
Antonio Montagnani
Skype : amontag52
SIP: antoniomontag at ekiga.net