Sounds like you may have an English/French keyboard. You said this was a Canadian version, right? so that makes sense.
If this is a laptop, the Blue key functions are "enabled" when holding down the Blue "Fn" key. For example, Fn+"brightness symbol" will brighten up the back-light for the screen. Chances are very good that there is a complement "dim" key right next to that "brightness."
If you haven't figured it out already, that key (plus holding down the Blue Fn key) will make the back-light dim down some, and possibly saving some energy, and allowing the batteries last longer.
There are possibly other Blue special keys for increasing/decreasing the speaker volume, and for turning on/off the external and internal monitor. Look around those Blue symbol keys, generally the icon is almost self-explanatory. Or, (here's a thought!) read the manual.
Along with those Blue special functions will also be a combination that will enable the Numlock, and ScrollLock, etc.) And it sounds like some of the French needed special accented keys, like
Hi I have an HP DV600 (canadian version)
My keyboard has three sets of symbols on them; letters, stuff that's in boxes, that i can use when I hit the function key. e.g. FN and F7 has a little brightness symbol and then a set of blue symbols e.g. the '/' key has an