Have you tried typing init 5 as root?
Linux has a set of run levels, a concept dating back to the 1970s with the original UNIX.
The runlevels for PCLinuxOS are as follows:
Runlevel 0 is a complete shutdown and poweroff mode.
Runlevel 1 is a single user mode with only the root account active. This function is normally used for low level system administration only. No networking or graphical interface is possible here.
Runlevel 2 is a single user mode with networking and multitasking, but no graphical interface.
Runlevel 3 is a multiuser mode with networking and multitasking, and is reminiscent of early UNIX systems. This mode is typically used on servers, and anywhere a graphical interface is not required.
Runlevel 4 is not used by PCLinuxOS, but is there for consistency among other Linux/UNIX systems.
Runlevel 5 is the normal operating mode for PCLinuxOS. This provides a graphical interface through X11, multiuser, networking, and of course, multitasking.
Runlevel 6 tells PCLinuxOS to reboot.
In this case, your machine was running in Runlevel 3. To get the graphical interface, you want to switch to Runlevel 5, and hence, I would recommend issuing init 5 from the console.