Site wont work properly?!

Question

Hello,
I searched for the same or similar problem first but havent find my kind of problem, so I have decided to make a new thread.
My site solution is very simple, its something more like a test: www.bursac.net/student
Techically, Flash itself doesnt report any kind of problem at all. But, practically site (site is one big flash .swf movie right?) wont work as intended.
Simply, when I roll over the main word "student", text should appear and dissapear when I roll out of the word. It works for a couple of times when I do that, but after a while (or sometimes immediately) it switches around and then text dissapears when I roll over instead of opposite.
So, are there any idea what could possibly be the problem?
Thank you so very much in advance.
Savo
My code is very basic:
stop();
student_mc.buttonMode = true;
student_mc.addEventListener(MouseEvent.ROLL_OVER, introductionIn);
student_mc.addEventListener(MouseEvent.ROLL_OUT, introductionOut);
student_mc.addEventListener(MouseEvent.CLICK, resultIn);
student_mc.addEventListener(MouseEvent.CLICK, timeIn);
student_mc.addEventListener(MouseEvent.CLICK, thinkingIn);
student_mc.addEventListener(MouseEvent.CLICK, educationIn);
student_mc.addEventListener(MouseEvent.CLICK, cultureIn);
student_mc.addEventListener(MouseEvent.CLICK, invisibleIn);
function introductionIn(event:MouseEvent):void
introduction_mc.gotoAndPlay("over");
function introductionOut(event:MouseEvent):void
introduction_mc.gotoAndPlay("out");
function resultIn(event:MouseEvent):void
result_mc.gotoAndPlay("over");
function timeIn(event:MouseEvent):void
time_mc.gotoAndPlay("over");
function thinkingIn(event:MouseEvent):void
thinking_mc.gotoAndPlay("over");
function educationIn(event:MouseEvent):void
education_mc.gotoAndPlay("over");
function cultureIn(event:MouseEvent):void
culture_mc.gotoAndPlay("over");
function invisibleIn(event:MouseEvent):void
invisible_mc.gotoAndPlay("over");
result_mc.buttonMode = true;
time_mc.buttonMode = true;
thinking_mc.buttonMode = true;
education_mc.buttonMode = true;
culture_mc.buttonMode = true;
invisible_mc.buttonMode = true;
invisible_mc.addEventListener(MouseEvent.CLICK, generalMove);
invisible_mc.addEventListener(MouseEvent.CLICK, Move);
invisible_mc.addEventListener(MouseEvent.CLICK, studentOver);
invisible_mc.addEventListener(MouseEvent.ROLL_OVER, lineIn);
invisible_mc.addEventListener(MouseEvent.ROLL_OUT, lineOut);
invisible_mc.addEventListener(MouseEvent.CLICK, navigationMove);
function navigationMove(event:MouseEvent):void
up_mc.gotoAndPlay("on");
down_mc.gotoAndPlay("on");
left_mc.gotoAndPlay("on");
right_mc.gotoAndPlay("on");
function Move(event:MouseEvent):void
result_mc.gotoAndPlay("click");
time_mc.gotoAndPlay("click");
thinking_mc.gotoAndPlay("click");
education_mc.gotoAndPlay("click");
culture_mc.gotoAndPlay("click");
invisible_mc.visible = false;
function lineIn(event:MouseEvent):void
lines_mc.gotoAndPlay("over");
function lineOut(event:MouseEvent):void
lines_mc.gotoAndPlay("out");
function studentOver(event:MouseEvent):void
student_mc.gotoAndPlay("over");
function generalMove(event:MouseEvent):void
general_mc.gotoAndPlay("on");
up_mc.addEventListener(MouseEvent.CLICK, generalUp);
down_mc.addEventListener(MouseEvent.CLICK, generalDown);
left_mc.addEventListener(MouseEvent.CLICK, generalLeft);
right_mc.addEventListener(MouseEvent.CLICK, generalRight);
function generalUp(event:MouseEvent):void
general_mc.y += 20;
function generalDown(event:MouseEvent):void
general_mc.y -= 20;
function generalLeft(event:MouseEvent):void
general_mc.x += 20;
function generalRight(event:MouseEvent):void
general_mc.x -= 20;

Answer 1

Hello,
Many site issues can be caused by corrupt cookies or cache. In order to try to fix these problems, the first step is to clear both cookies and the cache.
Note: ''This will temporarily log you out of all sites you're logged in to.''
To clear cache and cookies do the following:
#Go to Firefox > History > Clear recent history or (if no Firefox button is shown) go to Tools > Clear recent history.
#Under "Time range to clear", select "Everything".
#Now, click the arrow next to Details to toggle the Details list active.
#From the details list, check ''Cache'' and ''Cookies'' and uncheck everything else.
#Now click the ''Clear now'' button.
Further information can be found in the [[Clear your cache, history and other personal information in Firefox]] article.
Start Firefox in Safe Mode to check if one of the extensions (Firefox/Tools > Add-ons > Extensions) or if hardware acceleration is causing the problem (switch to the DEFAULT theme: Firefox/Tools > Add-ons > Appearance).
<b> To Enable SafeMode </b>
*You can open Firefox 4.0+ in Safe Mode by holding the '''Shift''' key when you open the Firefox desktop or Start menu shortcut.
* Or open the Help menu and click on the '''Restart with Add-ons Disabled...''' menu item while Firefox is running.
*''Once you get the pop-up, just select "'Start in Safe Mode"''
If it works in Safe Mode and in normal mode with all extensions (Tools > Add-ons > Extensions) disabled then try to find which extension is causing it by enabling one extension at a time until the problem reappears.
Close and restart Firefox after each change via "Firefox > Exit" (Windows: Firefox/File > Exit; Mac: "Firefox > Quit Firefox"; Linux: "Firefox/File > Quit")
* https://support.mozilla.org/en-US/kb/troubleshoot-firefox-issues-using-safe-mode
*https://support.mozilla.org/kb/Safe+Mode
*https://support.mozilla.org/kb/Troubleshooting+extensions+and+themes