user@ubuntu810desktop:~/develop/gitdev$ uname -a
Linux ubuntu810desktop 2.6.27-11-generic #1 SMP Thu Jan 29 19:24:39 UTC 2009 i686
GNU/Linux
user@ubuntu810desktop:~/develop/gitdev$ ghc-pkg list
/usr/lib/ghc-6.10.1/./package.conf:
    Cabal-1.6.0.1, array-0.2.0.0, base-3.0.3.0, base-4.0.0.0,
    binary-0.5, bytestring-0.9.1.4, cairo-0.10.0, containers-0.2.0.0,
    directory-1.0.0.2, editline-0.2.1.0, filepath-1.1.0.1,
    (ghc-6.10.1), ghc-prim-0.1.0.0, gio-0.10.0, glib-0.10.0,
    gtk-0.10.0, gtksourceview2-0.10.0, haskell98-1.0.1.0, hpc-0.5.0.2,
    integer-0.1.0.0, mtl-1.1.0.2, old-locale-1.0.0.1, old-time-1.0.0.1,
    packedstring-0.1.0.1, parsec-3.0.0, pretty-1.0.1.0,
    process-1.0.1.0, random-1.0.0.1, rts-1.0, soegtk-0.10.0,
    syb-0.1.0.0, template-haskell-2.3.0.0, unix-2.3.1.0,
    xhtml-3000.2.0.1
/home/user/.ghc/i386-linux-6.10.1/package.conf:
    Diff-0.1.2, HAppS-Data-0.9.3, HAppS-IxSet-0.9.3,
    HAppS-Server-0.9.3.1, HAppS-State-0.9.3, HAppS-Util-0.9.3,
    HJScript-0.4.4, HJavaScript-0.4.4, HStringTemplate-0.4.3,
    HTTP-4000.0.5, HUnit-1.2.0.3, HaXml-1.13.3, MaybeT-0.1.2,
    QuickCheck-1.2.0.0, SHA-1.2.1, cgi-3001.1.7.1, cpphs-1.6,
    datetime-0.1, digest-0.0.0.5, extensible-exceptions-0.1.1.0,
    filestore-0.2, ghc-paths-0.1.0.5, happstack-0.2.1,
    happstack-data-0.2.1, happstack-ixset-0.2.1,
    happstack-server-0.2.1, happstack-state-0.2.1,
    happstack-util-0.2.1, harp-0.4, haskell-src-exts-0.4.8,
    highlighting-kate-0.2.4, hledger-0.4, hslogger-1.0.7, hsp-0.4.5,
    hspread-0.3.1, hsx-0.4.8, html-1.0.1.2, mtlparse-0.0.1,
    network-2.2.0.1, pandoc-1.2, parsec-2.1.0.1, pcre-light-0.3.1,
    recaptcha-0.1, regex-base-0.93.1, regex-compat-0.92,
    regex-posix-0.72.0.3, regex-posix-0.94.1, regexpr-0.5.1,
    split-0.1.1, stm-2.1.1.2, syb-with-class-0.5.1, terminfo-0.3.0.2,
    testpack-1.0.2, time-1.1.2.3, utf8-string-0.3.4, vty-3.1.8.4,
    xml-1.3.4, zip-archive-0.1.1.3, zlib-0.5.0.0
user@ubuntu810desktop:~/develop/gitdev$ pkg-config --modversion gtksourceview-2.0
2.4.1
user@ubuntu810desktop:~/develop/gitdev$ ghc --version
The Glorious Glasgow Haskell Compilation System, version 6.10.1
user@ubuntu810desktop:~/develop/gitdev$ cabal --version
cabal-install version 0.6.2
using version 1.6.0.1 of the Cabal library 
user@ubuntu810desktop:~/develop/gitdev$ 

gth2hs is the tar one , and all is is running in vm 6.5.10, with the x server from
vmtools (which is probably what you need for "graphic card"), right ?

I' m not aware if this issue is still a problem I can't reproduce it.