So today, I have installed iwork 9 ( I still have Iwork8) and I updated safari to v4. When I try to to time machine back up- this is what happens:
Wed Mar 4 20:25:45 2009
panic(cpu 1 caller 0x00197185): "pmap_enter: null pv_list!"@/SourceCache/xnu/xnu-1228.9.59/osfmk/i386/pmap.c:2766
Backtrace (CPU 1), Frame : Return Address (4 potential args on stack)
0x54bd7c58 : 0x12b4f3 (0x45b13c 0x54bd7c8c 0x1335e4 0x0)
0x54bd7ca8 : 0x197185 (0x461c90 0x647cd68 0x0 0x0)
0x54bd7d88 : 0x1601d9 (0x647cd24 0xad29000 0x0 0x84dcd)
0x54bd7de8 : 0x162ac0 (0x327d498 0x647cd24 0xad29000 0x0)
0x54bd7f58 : 0x1a9f06 (0x14598b8 0xad29000 0x0 0x3)
0x54bd7fc8 : 0x1a028a (0x6e53d80 0x0 0x1a30b5 0x6e53d80)
No mapping exists for frame pointer
Backtrace terminated-invalid frame pointer 0xb0080398

BSD process name corresponding to current thread: ReportCrash

Mac OS version:

Kernel version:
Darwin Kernel Version 9.6.0: Mon Nov 24 17:37:00 PST 2008; root:xnu-1228.9.59~1/RELEASE_I386
System model name: MacBookPro4,1 (Mac-F42C89C8)

Any hints?

Thanks so much