segfaults in mythtv-frontend

Hi Christian !

I get a lot of these errors in 0.24.2-0.0squeeze1.

> [2012-03-20 17:18:05] mythfrontend[29598]: segfault at 0 ip
00007fc0b0e5ccdc sp 00007fc09a48a990 error 4 in
libQtCore.so.4.6.3[7fc0b0dd8000+283000]
> [2012-03-20 17:18:05] mythfrontend[29985]: segfault at 58aae48 ip
00007f4e498b4edd sp 00007f4e2df1bb70 error 4 in
libc-2.11.3.so[7f4e49843000+159000]
> [2012-03-20 17:23:15] mythfrontend[31224]: segfault at 11 ip
00007ff0da24b42e sp 00007ff0c0a49cd0 error 6 in
libc-2.11.3.so[7ff0da1d7000+159000]
> [2012-03-20 17:24:00] mythfrontend[31384]: segfault at 30 ip
00007fb7c51d62b5 sp 00007fb7ad5c9bb0 error 4 in
libc-2.11.3.so[7fb7c5162000+159000]
> [2012-03-20 17:24:00] mythfrontend[31329]: segfault at 430d000 ip
00007f2ccd700e46 sp 00007f2cb526aa60 error 4 in
libmythupnp-0.24.so.0.24.0[7f2ccd6b1000+ad000]
> [2012-03-20 20:47:11] mythfrontend[27516]: segfault at 0 ip
00007f81e4b8cdd7 sp 00007f81cc5ebbc0 error 4 in
libQtCore.so.4.6.3[7f81e4a10000+283000]

Any ideas what i could do ?
This is on 0.24.2-0.0squeeze1.
Thanks,
Karl