Comment 2 for bug 193498

Additional information:

I think this is a qt4 problem, because LyX 1.5.3 gives the same error.

lyx --version gives:
LyX 1.5.3 (Mon, Dec 17, 2007)
Built on Jan 4 2008, 12:58:21
Configuration
  Host type: i486-pc-linux-gnu
  Special build flags: aiksaurus pch warnings use-aspell use-ispell
  C Compiler: gcc
  C Compiler LyX flags:
  C Compiler flags: -Wextra -Wall -g -O2
  C++ Compiler: g++ (4.2.3)
  C++ Compiler LyX flags:
  C++ Compiler flags: -Wextra -Wall -g -O2
  Linker flags:
  Linker user flags: -Wl,-z,defs -Wl,--as-needed
  Qt 4 Frontend:
      Qt 4 version: 4.3.3
  Packaging: posix
  LyX binary dir: /usr/bin
  LyX files dir: /usr/share/lyx