Hi,
If you don't have any games installed in Steam, there's a "double separator" (a separator that separate nothing) displayed in Steam's app indicator. Screen:

It's a small issue, but should be fixed :) If the user doesn't have any games installed, the separator shouldn't be displayed - that's all.
Regards

Btw. - system info (I don't think it's necessary here, but...):

Processor Information:
    Vendor:  GenuineIntel
    Speed: 3000 Mhz
    2 logical processors
    2 physical processors
    HyperThreading:  Unsupported
    FCMOV:  Supported
    SSE2:  Supported
    SSE3:  Supported
    SSSE3:  Supported
    SSE4a:  Unsupported
    SSE41:  Supported
    SSE42:  Unsupported

Network Information:
    Network Speed:  

Operating System Version:
    Ubuntu 12.10 (64 bit)
    Kernel Name:  Linux
    Kernel Version:  3.5.0-26-generic
    X Server Vendor:  The X.Org Foundation
    X Server Release:  11300000
    X Window Manager:  Compiz
    Steam Runtime Version:  steam-runtime-release-i386_2013-03-25

Video Card:
    Driver:  NVIDIA Corporation GeForce 9600 GT/PCIe/SSE2

    Driver Version:  3.3.0 NVIDIA 304.84
    Desktop Color Depth: 24 bits per pixel
    Monitor Refresh Rate: 60 Hz
    VendorID:  0x10de
    DeviceID:  0x622
    Number of Monitors:  1
    Number of Logical Video Cards:  1
    Primary Display Resolution:  1920 x 1080
    Desktop Resolution: 1920 x 1080
    Primary Display Size: 20,87" x 11,81"  (23,98" diag)
                                            53,0cm x 30,0cm  (60,9cm diag)
    Primary Bus: PCI Express 16x
    Primary VRAM: 512 MB
    Supported MSAA Modes:  2x 4x 8x 16x 

Sound card:
    Audio device: eMicro EM28028

Memory:
    RAM:  5969 Mb

Miscellaneous:
    UI Language:  English
    LANG:  pl_PL.UTF-8
    Microphone:  Not set
    Total Hard Disk Space Available:  56320 Mb
    Largest Free Hard Disk Block:  2087 Mb

Installed software:

Recent Failure Reports: