Alienware X51 R2 graphics problem Please Help

Hello,

This mostly happens at start up and sometimes during the day, it leaves me with no way of shutting down except to unplug it. Sometimes the pc starts up with the old windows look and i have to restart it and hope it uses the windows 7 look . This pc had graphics issues since the first day it arrived and a technician came and changed the card. I'll put my system information below. I hope someone can help. I have tried updating the drivers and running diagnostic/fixing tools.

OS Name    Microsoft Windows 7 Home Premium
Version    6.1.7601 Service Pack 1 Build 7601
Other OS Description     Not Available
OS Manufacturer    Microsoft Corporation
System Name    GABY-PC
System Manufacturer    Alienware
System Model    Alienware X51 R2
System Type    x64-based PC
Processor    Intel(R) Core(TM) i5-4440 CPU @ 3.10GHz, 3101 Mhz, 4 Core(s), 4 Logical Processor(s)
BIOS Version/Date    Alienware A04, 18/11/2013
SMBIOS Version    2.8
Windows Directory    C:\Windows
System Directory    C:\Windows\system32
Boot Device    \Device\HarddiskVolume1
Locale    United Kingdom
Hardware Abstraction Layer    Version = "6.1.7601.17514"
User Name    Gaby-PC\Gaby
Time Zone    GMT Daylight Time
Installed Physical Memory (RAM)    8.00 GB
Total Physical Memory    7.92 GB
Available Physical Memory    5.10 GB
Total Virtual Memory    15.8 GB
Available Virtual Memory    12.5 GB
Page File Space    7.92 GB
Page File    C:\pagefile.sys

Name    Intel(R) HD Graphics 4600
PNP Device ID    PCI\VEN_8086&DEV_0412&SUBSYS_05D71028&REV_06\3&11583659&0&10
Adapter Type    Intel(R) HD Graphics Family, Intel Corporation compatible
Adapter Description    Intel(R) HD Graphics 4600
Adapter RAM    (2,080,374,784) bytes
Installed Drivers    igdumdim64.dll,igd10iumd64.dll,igd10iumd64.dll,igdumdim32,igd10iumd32,igd10iumd32
Driver Version    9.18.10.3234
INF File    oem183.inf (iHSWD_w7 section)
Color Planes    Not Available
Color Table Entries    4294967296
Resolution    1920 x 1080 x 60 hertz
Bits/Pixel    32
Memory Address    0xF7800000-0xF7BFFFFF
Memory Address    0xD0000000-0xDFFFFFFF
I/O Port    0x0000FF80-0x0000FFBF
IRQ Channel    IRQ 4294967288
Driver    c:\windows\system32\drivers\igdkmd64.sys (9.18.10.3234, 4.24 MB (4,445,152 bytes), 09/04/2014 17:31)
    
Name    AMD Radeon(TM) R9 270
PNP Device ID    PCI\VEN_1002&DEV_6811&SUBSYS_0B041002&REV_00\4&1B2EF0FF&0&0008
Adapter Type    AMD Radeon Graphics Processor (0x6811), Advanced Micro Devices, Inc. compatible
Adapter Description    AMD Radeon(TM) R9 270
Adapter RAM    (2,147,483,648) bytes
Installed Drivers    aticfx64.dll,aticfx64.dll,aticfx64.dll,aticfx32,aticfx32,aticfx32,atiumd64.dll,atidxx64.dll,atidxx64.dll,atiumdag,atidxx32,atidxx32,atiumdva,atiumd6a.cap,atitmm64.dll
Driver Version    13.152.0.0
INF File    oem185.inf (ati2mtag_R575 section)
Color Planes    Not Available
Color Table Entries    Not Available
Resolution    Not Available
Bits/Pixel    Not Available
Memory Address    0xE0000000-0xEFFFFFFF
Memory Address    0xF7E00000-0xF7EFFFFF
I/O Port    0x0000E000-0x0000EFFF
IRQ Channel    IRQ 4294967289
I/O Port    0x000003B0-0x000003BB
I/O Port    0x000003C0-0x000003DF
Memory Address    0xA0000-0xBFFFF
Driver    c:\windows\system32\drivers\atikmpag.sys (8.14.1.6340, 604.00 KB (618,496 bytes), 25/04/2014 13:56)